Arbeitsfahrzeug mit Einrichtung zur Anpassung der Getriebeübersetzung bei Gefälle

摘要

A working vehicle for work such as a turf grass management is provided, which has an improved climb-up performance and an improved engine-break force at a stage of climbing down a slope. The working vehicle mounts a working machine driven by an engine and also a continuously variable transmission thereon, and has a climb-up or climb-down mode Df which sets a transmission ratio of the continuously variable transmission at a maximum value during travel of a slope. The climb-up or climb-down mode Df is selected by an operation of a sift lever or automatically detected by climb-up or climb-down detecting means. When the mode Df is set, a pulley ratio of the continuously variable transmission is controlled so as to have the maximum transmission ratio based on a command signal of a control unit.